Research Progress on Microbial Degradation of Phenolic Environmental Endocrine Disruptors
Environmental endocrine disruptors(EDCs),also known as environmental hormones,exhibit structures and effects similar to natural hormones,potentially disrupting the endocrine systems of organisms and posing significant health risks to both humans and animals.This paper focuses on the microbial degradationof typical phenolic EDCs,specifically alkylphenols(APs),bisphenols(BPs),and chlorophenols(CPs).Effective degrading bacteria and fungi have been identified in contaminated soils,rivers,sediments,and activated sludge.These microorganisms hold great potential for bioremediation of polluted soils and water bodies,as well as for the removal of phenolic EDCs from wastewater.This paper systematically reviews the degrading microbes and their metabolic pathways under both aerobic and anaerobic conditions.It summarizes the degrading enzymes and functional genes involved,including monooxygenases and hydroxylases for hydroxylation,dioxygenases for ring cleavage,and reductive dehalogenases for reductive dechlorination.The aim is to provide a scientific basis for the innovation of microbial methods aimed at the efficient reduction of phenolic EDCs.
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